At a Glance
- Tasks: Refine and optimise AI model behaviour for real-world applications.
- Company: Mistral, a dynamic team passionate about AI innovation.
- Benefits: Comprehensive benefits package including healthcare, wellness programs, and work-life balance support.
- Other info: Collaborative environment with opportunities for personal and professional growth.
- Why this job: Shape the future of AI and tackle complex challenges with cutting-edge technology.
- Qualifications: Deep understanding of linguistics or engineering, with experience in AI model optimisation.
The predicted salary is between 70000 - 90000 £ per year.
About Mistral
Mistral provides full‑stack AI solutions: from frontier models to developer tools, applications, and compute.
We partner with enterprises tackling the hardest problems—across high‑stakes industries like finance, manufacturing, defense, healthcare, and the public sector—co‑creating customized AI systems that they can run on their terms.
We are a dynamic, collaborative team passionate about AI and its potential to transform society.
Our diverse workforce thrives in competitive environments and is committed to driving innovation.
Our teams are distributed between Europe, North America, Asia and the Middle East.
We are creative, low‑ego and team‑spirited.
The Role
- As a
- Model Behavior Architect on the
Safety team, you will define and measure how large language models behave across reasoning, audio, alignment, tools, and other cutting‑edge areas.
This role exists to ensure our models meet the highest standards of performance, reliability, and real‑world utility.
You will work closely with the Science team to establish what “good” looks like, translating research insights into actionable improvements.
Your contributions will shape the behavior of Mistral’s models, enabling them to tackle complex tasks with precision and adaptability.
What You Will Do
- Interact with models to pinpoint areas where behaviour can be refined and optimised.
- Gather feedback from internal and external sources to identify and prioritise improvement opportunities.
- Design and implement evaluations, data guidelines, and synthetic testing environments.
- Address edge cases through rigorous testing to enhance model reliability and accuracy.
- Develop robust evaluation pipelines to assess the capabilities of model candidates.
- Collaborate with AI Scientists to align model behavior with research goals and practical needs.
- What We’re Looking For
- Deep understanding of linguistics, language, and translation, or expertise in engineering and code behaviour, or experience with LLM agents, including reasoning and tool use.
- Prior knowledge in training and optimising model behaviour for real‑world applications.
- Expertise in building robust, scalable evaluation frameworks for AI systems.
- Ability to thrive in dynamic, technically complex environments and deliver innovative solutions.
- Track record of solving open‑ended challenges with creative, practical approaches.
What We Offer
We offer a comprehensive benefits package designed to support your well‑being, growth, and work‑life balance.
Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location‑specific perks.
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Model Behavior Architect, Safety in London employer: mistral
Mistral is an exceptional employer located in the vibrant Greater London area, offering a dynamic work culture that fosters innovation and collaboration. Employees benefit from competitive salaries, equity options, comprehensive health insurance, and visa sponsorship, alongside ample opportunities for professional growth within the rapidly evolving field of AI. Joining Mistral means being part of a forward-thinking team dedicated to making a meaningful impact through strategic partnerships with leading publishers and academic institutions.
